baber/WOPTO huggingface dataset:
Patent JP-S60212201-A (JP)
Title: Chlorine injection control apparatus of water purification plant
Inventor: MIURA RIYOUSUKE
IPC: C02F1/76
Filed: 1984-04-09
Abstract: PURPOSE:To stably control the concn. of residual chlorine of a precipitation basin to a required value, by preliminarily correcting the estimation amount of quantity of solar radiation and feeding the corrected value forwardly to operate and set the objective chlorine concn. of floc water flowed into the precipitation basin. CONSTITUTION:A chlorine injection apparatus 2 performs chlorine injection operation according to the chlorine injection ratio MV to the lately control cycle calculated by a residual salt meter 17, an actinometer 19 and first - fifth operators 18, 20, 25, 27, 29. As a result, feedback control by the actual residual chlorine concn. of floc water and feedforward control by the preliminarily calculated quantity of solar radiation are performed and the concn. of residual chlorine of a precipitation basin can be stably controlled by both control operations.
Patent JP-H09235971-A (JP)
Title: Attachment for ladder
Inventor: MATSUOKA TAKASHI
IPC: E06C7/42
Filed: 1996-02-28
Abstract: PROBLEM TO BE SOLVED: To prevent legs of a ladder from shifting owing to the load on moving up and down and increase the safety, when the end members of the legs of the ladder laterally laying multi-stage tread sashes between parallel vertical frames are put on the ground and the ladder is set to lean against a building or the like. SOLUTION: A belt-form attachment plate 9 is inserted in the clearance between the lower end of a vertical frame 2 to which a leg end member 4 is attached and a grounding plate 7 of the leg end member 4 and protruded to both front and rear sides of the leg end member 4 so as to detachably set thereto. The attachment is provided with a spike bolt 12 which is inserted in a fixing hole 11 made in the attachement plate 9 and driven into the ground on which the ladder 1 is erected. In this way, the leg end member 4 is fixed on the erected face of the ladder by driving the spike bolt, 12 into the fixing hole 11 of the attachment plate 9 arranged to the setting posture.
Patent JP-H06258005-A (JP)
Title: Displacement detector
Inventor: ITO ATSUSHI
IPC: G01B7/00
Filed: 1993-03-04
Abstract: PURPOSE:To provide a displacement detector excellent in linearity over the entire range of necessary stroke in which overall length of coil can be shortened. CONSTITUTION:Primary and secondary coils 1, 2 are arranged concentrically and a movable core 6 disposed in the primary coil 1 moves retractively toward the hollow part of the secondary coil 2. When the movable core 6 is displaced, nonlinear variable output voltage from the secondary coil 2 is converted into a linear variable voltage through a rectifier circuit, a shift circuit, plus and minus aide correction circuits.
Patent JP-S56164021-A (JP)
Title: Production of magnetic thin film of oxide
Inventor: HATSUTORI MASUZOU
IPC: H01F41/22
Filed: 1980-05-23
Abstract: PURPOSE: A polyvinyl ferrocene solution is blown together with an oxidative carrier gas to the heated base plate to form a film, which is reduced and oxidized to produce the objective γ-hematite film capable of high-density recording.  
     CONSTITUTION: A solution of polyvinyl ferrocene in an organic solvent such as ethanol is sprayed together with an oxygen gas as a carrier from a nozzle to the base plate which is heated to about 350W600°C. The polyvinyl ferrocene is pyrolyzed to form a film of iron oxide on the plate. Then, the film is heat treated in a hydrogen-gas atmosphere, further in the air to produce the objective γ-hematite film. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H01243459-A (JP)
Title: Semiconductor integrated circuit device
Inventor: UCHIDA AKIHISA
IPC: H01L29/73
Filed: 1988-03-25
Abstract: PURPOSE:To improve a current amplification factor and cut-off frequency by providing a base region, a collector region formed by diffusing an impurity into the base region from one part of the periphery of the base region and an emitter region shaped by diffusing the impurity from a position opposite to the collector region. CONSTITUTION:A high-speed bipolar transistor is composed of a base region 4 in the main surface of a semiconductor substrate 1, a collector region 5 formed by diffusing an impurity into the base region 4 from one part of the periphery of the base region 4 and an emitter region 6 shaped by diffusing the impurity to the base region 4 from a position opposite to a position, where the collector region 5 is formed, in the periphery of the base region 4. Consequently, the width of the base region 4 is reduced extremely by controlling the width of a region in which the high-speed transistor is shaped. Accordingly, high-speed operation can be conducted by cut-off frequency, and a current amplification factor can be improved.
Patent JP-H08264400-A (JP)
Title: Single-crystal silicon wafer and thermal oxidation of its surface
Inventor: MUKOGAWA YASUKAZU
IPC: H01L21/316
Filed: 1995-03-28
Abstract: PURPOSE: To eliminate the dispersion in the thickness of a gate oxide film by controlling the total amount of alkali and alkaline earth metals on the outer surface of a single-crystal silicon substrate to a specified level or below. CONSTITUTION: This is a single-crystal silicon wafer which has, on it outer surface, 2.6×10<11> atoms/cm<2> or below of the total amount of alkali and alkaline earth metals, 5×10<10> atoms/cm<2> or below of the concentration of sodium, 2×10<11> atoms/cm<2> or below of the concentration of potassium, and 14m10<10> atoms/ cm<2> or below of the concentration of calcium. This single-crystal silicon wafer, even if placed in a thermal oxidation furnace and heat-treated, has no thermal diffusion phenomenon of alkali and alkaline earth metals and therefore does not contaminate other single-crystal silicon wafers. As a result, a silicon oxide film formed on this substrate has a uniform thickness.
Patent JP-S58188213-A (JP)
Title: Conveyer
Inventor: DAIMARU JIYOUJI
IPC: B65G21/14
Filed: 1982-04-27
Abstract: PURPOSE:To convey an object in an optional position on a bed and remove an influence due to elongation of a chain, by constituting a conveyer such that the conveying chain is rocked by a swivel arm and a tension wheel to engage the chain to a bottom face engagement part of the conveyed object. CONSTITUTION:A hydraulic cylinder 10a is operated to turn a swivel arm 5a with a shaft 6a as the center in the direction of an arrow head (a) to a position of 2-dot chin line in the drawing. Here a transfer chain 16a can be continuously circulated in no relation to swivelling of the arm 5a by a change of the relative position between a sprocket 8a and a tension wheel 9a. Then a pallet base 2 is set to a prescribed position between conveying beds, and the arm 5a is swivelled by the cylinder 10a in the direction of an arrow head (b). Here a hook 17 of a pallet 3 is engaged to the chain 16a by an engagement part 18, and the pallet is transferred by the chain 16a. In this way, an influence of elongation of the chain is removed to enable the conveyance at an optional position.
Patent JP-H04220898-A (JP)
Title: Audio or video device containing speaker
Inventor: YORISU ADERUBERUTO MARIA NIYUU
IPC: H04R5/02
Filed: 1991-03-11
Abstract: PURPOSE: To provide an audio or video device whose cost performance is as high as possible capable of turning a constituting member inside a housing to an extremely small size, making the device as small as possible and performing best acoustic reproduction. CONSTITUTION: Viewing from the longitudinal direction of an acoustic channel 8, the length of a speaker 6 is made larger than or equal to the half of the length of the acoustic channel 8 and the speaker 6 is arranged inside the channel 8. Also, relating to a part which is a part of a speaker diaphragm 9 provided with a dimension larger than or equal to the half of the surface area of the diaphragm, the line orthogonally crossed with the part of the surface of the diaphragm is not oriented to a housing open hole 4 at the time of being reflected to a channel surface and the channel 8 is shaped so as to make the orthogonal line form equal incident angle and reflection angle to the channel surface.
Patent JP-S58187438-A (JP)
Title: Decorative material
Inventor: INOUE KIYOSHI
IPC: C08K3/14
Filed: 1982-04-27
Abstract: PURPOSE:A decorative material, prepared by molding the first composition containing a mixed composition of a heat-resistant synthetic resin with graphite and glass and a metallic compound having a high hardness and the second composition containing particles of a magnetic material, and having a high hardness and improved abrasion resistance. CONSTITUTION:A decorative material prepared by molding the first composition, containing a given amount of one or more synthetic resins, e.g. polyethylene, having a relatively high melting point, a given amount of one or more carbons, e.g. graphite powder, and glass spheres or fibers, and obtained by softening and heating the resultant composition above the melting point, and mixing one or more particles of metallic oxides, e.g. TiO2, nitrides, e.g. TiN, carbides, e.g. SiC, or mixture particles thereof with the composition and the second composition containing particles of a magnetic material, e.g. ferrite type, alone respectively or in combination under pressure. USE:Cases of watches or clocks, brooches, cups, metallic chasing materials, etc.
Patent JP-S61229257-A (JP)
Title: Video tape recorder
Inventor: FUTAGAMI AKIRA
IPC: G11B15/14
Filed: 1985-04-02
Abstract: PURPOSE:To obtain an excellent servo and head switching signal with simple constitution by providing pulse generators for detecting rotation while being shifted from a prescribed position, shifting the phase of the output by a monostable multivibrator and obtaining a prescribed output. CONSTITUTION:The pulse generators 5A, 5B of a rotary head drum 1 are provided with an angular interval of 180 deg., a magnetic sensor 11 is provided near the rotating face, a signal is fed from the sensor 11 to a detection circuit 12, a signal corresponding to the magnetic pole is formed and fed to a flip-flop 13 and a rectangular wave corresponding to the phase at each 180 deg. accurately is extracted from a monostable multivibrator 14. Further, a rectangular wave is fed to the differentiation circuit 18 from the monostable multivibrator 14, a pulse from the differentiation circuit 18 and a signal being the inversion from a signal of the flip-flop 13 are fed to an AND circuit 23 and a pulse corresponding to the trailing edge of the rectangular wave is extracted from the monostable multivibrator 14. The pulse is fed to a T flip-flop 22 as a reset pulse to apply switching control to a head changeover switch 3.
Patent JP-S54161504-A (JP)
Title: Air blasting blower for shaft furnace
Inventor: AMITANI TATSUO
IPC: C21B7/00
Filed: 1978-06-12
Abstract: PURPOSE: To reduce power consumption for driving blowers for blasting air to a hot stove for a shaft furnace and to remove simultaneously moisture of air during blast, by dividing the blowers into a high pressure blower and a low pressure blower, and by interposing an air cooler between both the blowers.  
     CONSTITUTION: In blast of air to a hot stove 2 for a shaft furnace 3, a low pressure blower 4 and a high pressure blower 6 are used with an air cooler 5 interposed between both the blowers. Amount of work required for driving a blower is proportional to absolute temp., so that cooling of the the air compressed and heated by a low pressure blower 4 with a cooler 5 decreases the power for driving the high pressure blower 6, in addn., removes the moisture contained in the air. Hereby, the operation efficiency of the shaft furnace is increased because dried air is introduced to the hot stove. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S6470211-A (JP)
Title: Suspension device for vehicle
Inventor: TANAKA TADAO
IPC: B60G17/04
Filed: 1988-03-25
Abstract: PURPOSE:To prevent nose dive by feeding a fluid into front wheel side fluid spring chamber while discharging fluid out of a rear wheel side fluid spring chamber for a set time when the rate of change of vehicle speed is above a set rate of change during the operation of brakes. CONSTITUTION:As the brakes in operation is recognized from the signal of a brake switch 48, a controller 36 calculates the change in time in vehicle speed (the rate of change in vehicle speed) detected by a vehicle speed sensor 41 and, if the absolute value of the rate of change is increased, it obtains a controlling time from a vehicle speed change rate map. Then, in accordance with this controlling time, solenoid valves 223, 224 are operated to feed compressed air into front wheel side air spring chambers 11, 12 while operating solenoid valves 271, 272 to discharge compressed air out of rear wheel side air spring chambers 11, 12. Thereby, the front side of vehicle body is lifted up while lowering the rear side. By this structure, nose dive can be prevented.
Patent JP-2000263333-A (JP)
Title: Electrode holder for electric discharge machine
Inventor: KIKUCHI HIROSHI
IPC: B23H7/26
Filed: 1999-03-16
Abstract: PROBLEM TO BE SOLVED: To facilitate carrying and efficiency of mounting work when mounting an electrode holder on a mounting head of an electric discharge machine, and to improve work efficiency by reducing the entire holder in weight. SOLUTION: This electrode holder is provided with: a base member 10 to be attached to a mounting head of an electric discharge machine: a clamper 11 for gripping en electrode; a clamper mounting plate 15 supported so as to be able to tilt and turn in relation to the base member 10; a main shaft 16 provided at the clamper mounting plate 15; a spherical bearing 20 for supporting the main shaft 16 so that the main shaft 16 can tilt and turn in relation to the base member 10; a swivel member 25 turnably provided at the base member 10; a turning transmitting and tilt-driving mechanism 40 for transmitting turning of the swivel member 25 to the clamper mounting plate 15 to tilt-drive the clamper mounting plate 15; and a turn-driving mechanism 40 for turning the swivel member 25 to turn-drive the clamper mounting plate 15.  The base member 10, the clamper mounting plate 15 and the swivel member 25 are formed of such nonferrous metal having a specific gravity of 3 or less as an aluminum alloy or magnesium alloy.
Patent JP-S51145361-A (JP)
Title: Watch
Inventor: TAMARU MUNETAKA
IPC: G04B29/02
Filed: 1975-06-10
Abstract: PURPOSE: Assemblying a watch in a small and thin construction by using a part of movement as the back cover of a case, without giving any damage to tis assemblying property. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-S52153470-A (JP)
Title: Shape detecting apparatus
Inventor: OGASAWARA AKITSUNE
IPC: G01L5/04
Filed: 1976-06-15
Abstract: PURPOSE:To make possible the measurement of shape without requiring any correction from outside at all despite any change in the tension to be applied to the subject or the thickness, etc. of the subject by providing a mean value calculation circuit for obtaining the mean values of the output of a signal processing circuit as well as an arithmetic circuit.
Patent JP-S59195619-A (JP)
Title: Optical system of projecting variable power image by lens array
Inventor: NISHIKAWA MASAHARU
IPC: G02B3/00
Filed: 1983-04-22
Abstract: PURPOSE:To obtain fine resolution with a short optical path by arranging a convex lens so that the conjugated surface of the convex lens with a convex lens on an object side or image side of a lens array variable power image projecting optical system satisfies the projecting condition of an unmagnified erect real image of the lens array. CONSTITUTION:The light flux f1 projected from an object O5, transmitted into the lens array 11 and projected in parallel with the optical axis is refracted by a convex lens 12 and advanced to the 2nd focus F2 of the convex lens 12. Light flus f2 advanced as if said flux f2 were projected from the 1st focus F1 of the convex lens 12 after projected from the lens array 11 is refracted by the convex lens 11 and then advanced in parallel with the optical axis. The erect real image of the object O5 is formed on the intersected point of the light flux f1 and f2. When the object O5, the lens array 11, the convex lens 12 and a projecting surface I5 are arranged so that an image side I5' coincides with an image side position satisfying the projecting conditions of the unmagnified erect real image of the lens array 11, a contracted erect real image can be formed while satisfying the projecting conditions of the equal power erect real image of the lens array 11.
Patent JP-S57185922-A (JP)
Title: Manufacture of steel bar for low temperature use
Inventor: HASHIMOTO TAMOTSU
IPC: C22C38/06
Filed: 1981-05-11
Abstract: PURPOSE:To manufacture a steel bar with high strength and toughness at very low temp. by rolling a steel contg. a specified percentage each of C, Si, Mn and sol. Al under specified conditions and further rolling it under other specified conditions. CONSTITUTION:A steel contg., by weight, 0.02-0.17% C, <=0.70% Si, 0.6-2.0% Mn and 0.01-0.07% sol. Al is heated to >=1,150 deg.C, rolled to the intermediate size of a product, and cooled to the Ar1 transformation point or below. It is heated again to the Ac3 transformation point - the Ac3 transformation point  +200 deg.C and rolled at >=60% total sectional reduction ratio. When the rolling is carried out at >=850 deg.C, the sectional reduction ratio per pass is regulated to  >=10%. When the rolling is carried out at <=850 deg.C, the total sectional reduction  ratio is regulated to >=50%. The rolling finish temp. is the Ar3 transformation  point + or -30 deg.C. The rolled steel is allowed to cool or forced to be cooled, and it is optionally tempered at the Ac1 transformation point or below.
Patent JP-S57184948-A (JP)
Title: Creep testing device
Inventor: MIHASHI KENHACHI
IPC: G01N3/06
Filed: 1981-05-11
Abstract: PURPOSE:To measure elongation and contraction of a specimen without dispersion by applying a load on the specimen wherein the length of a region to be measured is the part between marking lines whose optical characteristic is different from the other part of the surface, and scanning the part corresponding to the marking lines by a television camera and the like. CONSTITUTION:Two marking lines Q are provided on the specimen S such as rubber or the like and part between them is made to be the length of the region to be measured. The optical characteristics such as lightness is made different from the other region of the surface of the specimen. The load is applied so that the length of the region to be measured becomes long by a load applying means. The specimen S is scanned by the surface scanning device such as a television camera, and its output is given to a signal processor. A measuring range specifying signal is generated based on the output of the scanning device. The pulse signal corresponding to the length of the region to be measured is obtained, and the pulse interval T is measured. Even though a clamp and the like for holding the specimen is present in the scanning range, accurate measuring can be performed without the effect of the clamp.
Patent JP-H08245686-A (JP)
Title: Bioactive substance and its production
Inventor: ICHIHARA KOUMIN
IPC: C07J13/00
Filed: 1995-03-06
Abstract: PURPOSE: To obtain a new bioactive substance having eliminating activity of a bonding site of scaly leaf of Chamaecyparis obtusa and useful as a herbicide and a phytohormone agent, etc., by culturing Cryptosporiopsis-abietina having abscisterol productivity. CONSTITUTION: The objective bioactive substance includes a new bioactive substance abscisterol B expressed by formula I, a new bioactive substance abscisterol C expressed by formula II and a new bioactive substance abscisterol D expressed by formula III, etc. The substance has eliminating activity of a bonding site of scaly leaf of Chamaecyparis obtusa and is useful as a herbicide and a phytohormone agent, etc. These abscisterol compounds are obtained by culturing Cryptosporiopsis-abietina having abscisterol productivity and collecting a bioactive substance from there cultured substance or fungus body.
Patent JP-S59195181-A (JP)
Title: Display device of clock
Inventor: SHIRATORI KAZUHIKO
IPC: G04C17/02
Filed: 1983-04-21
Abstract: PURPOSE:To display many information by a samll number of display elements and to obtain also a decorative effect by fitting plural display elements to a pendulum and driving the display elements synchronously with the movement of the pendulum. CONSTITUTION:A clock body 1 is provided with the pendulum 2 and the display elements 3 such as LEDs are fitted to the endulum. Each display element 3 is selectively driven synchronously with the movement of the pendulum 2 and characters, numerals or graphic forms are displayed by an afterimage phenomenon. At every period of the pendulum 2, 7 pulses are generated from a control circuit 11 and supplied to a counter 12. Week data of that day are read out from a storage circuit 9 on the basis of the output of the counter 12 and the output of a week counter 8 and the display elements 3 are driven by the output of a driving circuit 13.
Patent JP-S61229111-A (JP)
Title: Device for correcting load-terminal voltage of dc power source
Inventor: SUGAYA TADASHI
IPC: G05F1/565
Filed: 1985-04-03
Abstract: PURPOSE:To correct a load-terminal voltage without using any remote sensing by detecting an output current and the output voltage of a DC power source and correcting the output voltage of the power source. CONSTITUTION:Since the difference between the output voltage Vout and the load-terminal voltage VL of a regulated DC power supply device 1 is under the control of an electric current iL flowing through wirings 2 and 3, the electric current iL is detected by means of a resistance R5 and inputted in a differential amplifier A1 after combining it with the detected voltage of the output voltage Vout. As a result, a correcting voltage proportional to the current iL is generated and the output voltage Vout of the regulated DC power supply device 1 is adjusted. Consequently, the load-terminal voltage VL can be maintained at a desired value.
Patent JP-S545363-A (JP)
Title: Sound reproducing device
Inventor: ISHII SHIYOUICHI
IPC: H03F1/00
Filed: 1977-06-15
Abstract: PURPOSE: To obtain an extremely high-performance sound reproducing device by providing a howling prevention circuit which can eliminate the howling in a simple and assured way. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H04282300-A (JP)
Title: Mechanical pencil
Inventor: WATANABE HIROYUKI
IPC: B43K21/16
Filed: 1991-03-11
Abstract: PURPOSE:To obtain a low-cost mechanical pencil of a simple construction capable of projecting lead by a shake. CONSTITUTION:A lead tank 3 inserted from frontward of a barrel 7 is incorporated in the barrel 7. Furthermore, a cylindrical weight body 11 is inserted from rearward of the barrel 7. The weight body 11 is put from the rear end 3A of the lead tank 3 to be loosely fitted to the outer periphery of the lead tank 3. A stopper 12 capable of stopping the weight body 11 at a proper position is slidably mounted on the rear part of the barrel 7.